Horn Pond is a lake in Carroll County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.

How deep is Horn Pond?

Horn Pond has a maximum depth of 30 feet and an average depth of 12.8 feet. The lake covers 227 acres.

Are there boat ramps on Horn Pond?

Horn Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Horn Pond. Public access is listed as yes.

Can I fish at Horn Pond?

Horn Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by New Hampshire's fish and wildlife agency, so check its current regulations before you go.

Horn Pond

Carroll County, New Hampshire227 acresView map Directions

No nutrient or algae sampling on record from NHDES for this lake.

Max depth

30 ft

Bathymetric survey

Area

227 acres

Surface area

Shoreline

5.1 mi

Measured length

Impaired · Mercury
30 ft max depth
Public access

See the measurements Directions Where to stay

Horn Pond in Carroll County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 30 ft. Surface area: 227 acres.

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Horn Pond is a 227-acre lake in Carroll County, New Hampshire with a maximum depth of 30 feet (13-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

What Horn Pond is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Deep water30 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Horn Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.

Whether Horn Pond is safe to swim in today is a call for the New Hampshire Department of Environmental Services and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Horn Pond

These are the measurements NHDES publishes for Horn Pond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Horn Pond

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

30 ft

Average depth

12.8 ft

Surface area

227 acres

Shoreline

5.1 mi

Public access

Yes

Listed by NHDES

The depth above comes from a bathymetric survey of this lake, not from a regional estimate.

Recreation & Access

Boat Landings

Yes

Public Access

Horn PondPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Horn Pond

Compare lakeside cabins, hotels, and vacation rentals near Horn Pond in Carroll County, New Hampshire — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Horn Pond

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Fishing Horn Pond

→ Horn Pond fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Horn Pond is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

MercurypH / acidity

Designated uses not supporting: Aquatic life, Fish consumption.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit NHLAK600030403-02 · Official waterbody report

Nearby Lakes in Carroll County

Lake Ivanhoe3.2 miView →Balch Pond-Deep SpotMesotrophic—View →Lovell Lake3.2 miView →Union Meadows—View →Belleau Lake—View →Pine River Pond—View →

Frequently asked questions about Horn Pond

Where is Horn Pond?: Horn Pond is a lake in Carroll County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Horn Pond?: Horn Pond in Carroll County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 30 ft. Surface area: 227 acres.
Is Horn Pond safe to swim in?: Nutrient and algae readings are not a swimming clearance. Horn Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.
How deep is Horn Pond?: Horn Pond has a maximum depth of 30 feet and an average depth of 12.8 feet. The lake covers 227 acres.
Are there boat ramps on Horn Pond?: Horn Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Horn Pond. Public access is listed as yes.
Can I fish at Horn Pond?: Horn Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by New Hampshire's fish and wildlife agency, so check its current regulations before you go.